Physics For Grade 7
Introduction
Grade 7 physics builds on the fundamental concepts learned in previous years, introducing students to more complex ideas about forces, energy, motion, and matter. At this level, students explore topics such as Newton's laws of motion, types of energy and their transformations, heat and temperature, and the behavior of light and sound. Through practical experiments and real-world applications, they develop a deeper understanding of how physics governs everyday life, from how machines work to why objects move the way they do. This knowledge lays the groundwork for more advanced scientific studies in the future.
All Chapters & Topics
1. Introduction to Physics
- 1.1. Definition and scope of physics
- 1.2. Importance of Physics in Daily Life and Technology
- 1.3. Scientific method and its applications in physics
- 1.4. Measurement and Experiments in Physics
- 1.5. Branches of Physics and their Applications
- 1.6. Relation of physics with other sciences
2. Measurement and units
- 2.1. Fundamental and derived quantities
- 2.2. SI units and unit conversions
- 2.3. Length measuring instruments and tools used
- 2.4. Measuring the difference between mass and weight
- 2.5. Measuring time with accuracy
- 2.6. Measuring the Volume of Regular and Irregular Objects
- 2.7. Measuring Temperature and Temperature Scales
- 2.8. Accuracy, Precision, and Significant Figures
- 2.9. Errors in Measurement and How to Reduce Them
- 2.10. Estimates and approximations in scientific calculations
- 2.11. Standard form and order of magnitude
3. Speed and Force
- 3.1. Introduction to motion and rest
- 3.2. Types of motion - uniform and non-uniform
- 3.3. Scalars and vectors in motion
- 3.4. Speed, Velocity, and Acceleration
- 3.5. Distance-time and velocity-time graphs
- 3.6. Newton's first law of motion (law of inertia)
- 3.7. Newton's second law of motion (force and acceleration)
- 3.8. newton's third law of motion
- 3.9. Types of forces - contact and non-contact forces
- 3.10. Effect of forces on motion
- 3.11. Friction – types, effects and applications
- 3.12. Gravity, free fall and gravitational acceleration
- 3.13. Circular motion and centripetal force
- 3.14. Application of Newton's laws in real life
4. Energy, Work and Power
- 4.1. Definition and forms of energy
- 4.2. Potential and Kinetic Energy
- 4.3. Law of conservation of energy
- 4.4. Energy transformations in everyday life
- 4.5. Work done by force and its calculation
- 4.6. Power - Definition and Calculation
- 4.7. Simple Machines and Mechanical Advantage
- 4.8. Efficiency and energy losses of machines
- 4.9. Renewable and non-renewable energy sources
5. Heat and temperature
- 5.1. Difference Between Heat and Temperature
- 5.2. Thermometer and temperature scale (Celsius, Kelvin, Fahrenheit)
- 5.3. Expansion and contraction of solids, liquids and gases
- 5.4. Heat transfer methods – conduction, convection and radiation
- 5.5. good and bad conductors of heat
- 5.6. Applications of heat transfer in daily life
- 5.7. Specific heat capacity and its applications
- 5.8. Latent heat and change of state
- 5.9. Thermal equilibrium and heat exchange
- 5.10. effect of heat on matter
6. Lighting and Optics
- 6.1. Nature and properties of light
- 6.2. Reflection of light and laws of reflection
- 6.3. Image formation by plane and curved mirrors
- 6.4. Refraction of light and the laws of refraction
- 6.5. Lenses – convex and concave, image formation
- 6.6. Optical instruments – microscope, telescope, camera
- 6.7. Dispersion of light and formation of spectrum
- 6.8. Human eye, vision defects and their correction
- 6.9. Applications of optics in daily life
- 6.10. Total internal reflection and its applications
7. Sound and waves
- 7.1. Nature and properties of waves
- 7.2. Production and propagation of sound
- 7.3. Characteristics of sound waves – frequency, amplitude, wavelength
- 7.4. Speed of sound in different mediums
- 7.5. Reflection of sound – echo and reverberation
- 7.6. Ultrasound and its applications
- 7.7. Doppler effect in sound waves
- 7.8. Noise pollution and its effects
- 7.9. Applications of sound in medicine and industry
8. Electricity and Magnetism
- 8.1. Electric charge and static electricity
- 8.2. Electrical conductors and insulators
- 8.3. Electric current, voltage and resistance
- 8.4. Ohm's law and its applications
- 8.5. Electrical Circuits - Series and Parallel Circuits
- 8.6. Electric power and energy consumption
- 8.7. Safety precautions in the use of electricity
- 8.8. Properties of magnets and magnetic fields
- 8.9. Electromagnets - How They Work and Their Uses
- 8.10. Relation between electricity and magnetism (electromagnetic induction)
- 8.11. Applications of electromagnetism in technology
- 8.12. Earth's magnetic field and its effects
9. Matter and its properties
- 9.1. Classification of matter- solid, liquid and gas
- 9.2. Properties of different states of matter
- 9.3. Kinetic theory of matter
- 9.4. Changes in the state of matter and their causes
- 9.5. Expansion and contraction of substances
- 9.6. Density and its calculation
- 9.7. Pressure in solids, liquids and gases
- 9.8. Atmospheric pressure and its effects
- 9.9. Applications of pressure in daily life
- 9.10. Buoyancy and Archimedes' principle
10. Space Science and Solar System
- 10.1. Introduction to Astronomy
- 10.2. Solar System - Planets and their Characteristics
- 10.3. Sun - structure and energy production
- 10.4. Moon - phases and its effect on Earth
- 10.5. Rotation and revolution of the earth
- 10.6. Solar and lunar eclipses
- 10.7. Gravity in space and its role in orbits
- 10.8. Artificial satellites and their uses
- 10.9. Space exploration and modern discoveries
- 10.10. Asteroids, comets and meteors
- 10.11. Life beyond Earth - Possibilities and Theories
11. Environmental Physics
- 11.1. Impact of physics on environmental science
- 11.2. Renewable and non-renewable energy sources
- 11.3. Energy conservation and efficiency
- 11.4. Climate change and its effects on Earth
- 11.5. Air, water and soil pollution – causes and effects
- 11.6. Greenhouse effect and global warming
- 11.7. Sustainable development and environmental protection
- 11.8. Role of Physics in Weather and Climate Studies